Sewing-machine.



. E. P. ARNOLD.

SEWING MACHINE.

APPLICATION IILED 17110.8, 1905.

Patented Jan. 18, 1910. f

. the channel with relation to the operatin 2, of the Worksupportshowing the adjararnni orricn.

'n'zItA; rnn'sco'rir ARNOLD, or RooKLAND, massnenusnrrs, Assrenon T0Unrrnn snon macnmnny COMPANY, OF PATEnson, NEW JERSEY, A CORPORATION onNEW JERSEY.

To all whom it may concern:

Be it known that I, EZRA PRESCOTT An NOLD, a citizen of the UnitedStates, residing at Rockla-n'd, in the county of Plymouth and State ofMassachusetts, have invented certain new and useful Improvements inSewing-Machines; and I do hereby declare the following to be a full,clear, and exact description of the invention, such as will enableothers skilled in the art to which it appertains to make and use thesame.

The present invention relates to an improvement in sewing machines andmore particularly sewing machines of the curved hook, lock-stitch,outsole type employed for uniting the outsole to the welt of a lastedshoe.

Ordinarily the outseamof a welt shoe isunited to the welt by a lockstitch scam in which the stitches appear uponjthe surface of the weltupon the one side and are buried in a channel in the outsole upon theother. It is sometimes desired to bury or cover the stitches upon thewelt side in a channel cut in the welt, making a seam known fudge stitchseam. Heretofore this required the separate operation of cutting thechannel inthe welt before the outsell? was sewn. This involves aseparate hai i dling of the shoe and it has been fOUl more or lessdiliicult to properly posit-it insbrumentalities' of the sewing machine.

According to the present invent-ion the sewing machine is provided witha welt channeling knife which cuts a channel in the weltduring'theoperation of the sewing instrumcntalities so that the separate operationupon the shoe is avoided and the cutting of the channel and thesewingcof a shoe are accomplished by a single operation This result'si'n an improved quality of work.-

Inthe accompanying drawings illustrating the preferredform of theinvention, Figure 1 is a front View of so much of an outsole stitcher asis necessary in order to illustrate the resent invention; Fig.2 a lanview oftheworksupport, and i'g, 3 1s a section, taken on the, line 3 3of Fig.

cent parts of a shoe in operative relation therewith.

The present invention is illustrated in con, nection withtheIwell-known' Goodyear rapid stitcher which is illustrated withsubstantial SEWING-MACHINE.

Specification of Lettcrs Paten't.- Patented J 18 1910; Application filedDecember 8, 1905. Serial in. 290,903.

accuracy in Letters Patent of the United States granted to French andMeyer April 26,- 1892, No. 473,870, to which reference.

that is to say, on the side of the needle fromwhich the work approachesthe needle. The

welt channeling knife K has a shank l which is received in a dove tailedgroove in the face of the work support in which it is secured by the setscrew 2. The knife K is flattened at its upper end as indicated in Figs.:2 and 3 and is provided with plow like concave surfaces 4 on its sidesback of i the cutting edge of the knife so that a channel is formedprovlded with two channel flaps, the bottom of the channel being flatand of the width of the upper end of the knife. The plow-like surfacesit act to proaches the stitch forming instrumentalities,-; the saidknife cuts a channel in the welt at precisely the place therein wherethe seam of stitches is about to be formed and turns up the flaps inreadiness forthe formation of the seam by the stitch forming mechanism.

This to beobserved that the present invention while it has beenillustrated in con nection with the well-known Goodyear outsole'stitcher is adapted for use" in connec-- tion with other forms ofoutseani sewing machines irrespective of whether they operate to form'achain stitch or a lock stitch, and-{that the present invention viewed inits broader aspects is not limited to the form or construction of thesewing instrumentahties or the welt'channeliiig knife illustrated anddescribed herein.

crowd and turn back the channel flaps as is; clearly indicated in Fig.3. The awl as it feeds-the work inits normal operation drags 11; isbelieved that the present applicant is" the first to employ a weltchanneling knife.

in connection with an outseam sewing machine for forming a channel inthe welt to receive the stitches of the outseam. In this connection itis tobe noted that the applicant is aware that ithas been proposed to;

provide a sewing machine with mechanism for cutting a groove in thebottom of the sole in a chain-stitch fair-stitching machine to receivethe seam of stitches, but such machine is clearly distinguished from theapplicants construction in a number of important respects apparent tothose skilled in the art, prominent among which is this that in thepresent construction the channeling knife both cuts a channel and turnsup a-fiap in proper position with relation to the stitch formingmechanism to permit the needle to' enter the channel.

Having thus described the invention, What is claimed is 1 1. An outseamsewing machine, having, in combination, stitch forming mechanismincluding a curved hook needle, a work support engaging the shoeexternally to support the welt and outsole in proximity to the needleand a ,welt channeling knife located in close proximity to the path ofthe needle for cutting a channel in the welt in advance of the stitchforming mechanism and in proper position with relation to the stitchforming mechanism so that the seam of stitches shall be sewn in thebottom of the channel thus cut, substantially as described.

2. An outseam sewing machine, having, in combination, stitch formingmechanism including a curved hook needle, a work sup- 1 port engagin theshoe externally to support the welt an outsole in proximityrto theneedle and means acting on the welt in close proximity to the needle forcutting a channel in the welt and turning up the in advance of thestitch forming mechanism, to permit the needle to enter the channel,substantially as described.

3; An outseam sewing machine, having, in combination, stitch forminmechanism including a curved hook nee ,le, a work support to engage thewelt of a shoe in prox imity to the needle and a Welt channeling and lipturning knife mounted upon the I work support in close proximity to thepath or" the needle in position to cut a' channel and turn up a lipinthe Welt in advance of the stitch forming mechanism and in properrelation thereto, substantially as described,

4. An outseam sewing machine, having, in combination, stitch formingmechanism including a curve d"hook needle, a work support to engage the'welt of a shoe in proximity to the needle, and a welt channeling 'knife projecting above the welt supporting thereto to cut a channel inthe welt provided with two channel flaps and having surfaces .to turnback the channel flaps to permit the needle to enter the channel,substantially as described, H v

In testimony. whereof I aflix my signature, in presence of twowitnesses.

EZRA PRESCOTT ARNOLD.

witnessesz' I I FREDERICK L. EDMONDS, BERNARD BARRows,

